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Statement-Level Read Consistency Oracle always enforces statement level read consistency. This guarantees that all the data returned by a single query comes from a single point in time—the time that the query began. Therefore, a query never sees dirty data or any of the changes made by transactions that commit during query execution. As query execution proceeds, only data committed before the query began is visible to the query. The query does not see changes committed after statement execution begins. Prajakta Pandit 03-2-2017 11:34 PM

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